If you have a new BF I don't think it's a good idea to accept the ex as a friend, since your present relationship is new. Makes me wonder if he's trying to sabotage it. I wonder what he wants from you - is he hoping for a reconciliation? If this made you cry, I think it's a red flag, indicating you're not ready IMO. If you're nervous and questioning whether to tell the new guy, this also isn't a good sign. I think it's bad timing all around.